GeForce GTX 980 SLI Mobile and Radeon HD 3870 - video card comparison
GeForce GTX 980 SLI Mobile
Radeon HD 3870
Architecture
Maxwell (2014−2018)
TeraScale (2005−2013)
GPU code name
N16E-GXX SLI
RV670
Market segment
Laptop
Desktop
Release date
September 2015
November 2007
Interface
-
PCIe 2.0 x16
Supplementary power connectors
-
1x 6-pin
SLI options
+
-
Boost clock speed
1228 MHz
-
Core clock speed
1126 MHz
777 MHz
Floating-point performance
-
497.3 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
10400 Million
666 million
Pipelines / CUDA cores
4096
320
Power consumption (TDP)
330 Watt
106 Watt
Texture fill rate
-
12.43
Memory type
GDDR5
GDDR4
Maximum RAM amount
2x 8 GB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
3500 MHz
2252 MHz
Memory bandwidth
-
72.06 GB/s
Shared memory
-
-
Display Connectors
-
2x DVI, 1x S-Video
G-SYNC support
+
-
DirectX
12_1
10.1 (10_1)
CUDA
+
-
OpenCL
-
N/A
OpenGL
-
3.3
Shader Model
-
4.1
Vulkan
-
N/A